Control Impact:Press the Analog-stick when Impact's introduction sequence ends to move his head.

Rumble Pak bonus:Although not an official Rumble Pak game, the Boss levels will support that peripheral.

Unlimited items or gold:Find a location that contains multiple items or gold, such as the first room in Oedo Castle. Collect the items, leave the room, then re-enter. The items will be available for recollection.